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1)  vortex flow sensor
涡街流量传感器
1.
The vortex signal is weak and easy to be submerged by high level noises when the vortex flow sensor measures low flowrate in a small caliber.
针对涡街流量传感器在小口径、低流速下信号微弱,易被强噪声淹没而难于提取的特点,提出了利用Duffing振子检测微弱信号的方法。
2.
The vortex signal is rather weak at low flowrate and hardly extracted from disturbances by a piezoelectric pressure probe,which results in a limited measuring range of the vortex flow sensor.
涡街流量传感器在测量小流量时由于信号微弱而不易检测,为解决这一问题从而扩展其测量下限,从传感器设计入手,研究在二维流场中压电探头与旋涡发生体的位置关系,找到适合信号检测的最佳位置。
3.
Vortex flow sensor is widely used in pipeline flow measurement.
作为一种速度式流量传感器,涡街流量传感器依据旋涡脱落频率与流速的线性关系工作。
2)  vortex flowmeter
涡街流量传感器
1.
Research on Measurement Characteristics of Vortex Flowmeter under Different Fluid Conditions;
涡街流量传感器不同流体条件下测量特性的研究
2.
Based on wavelet denoising theory as well as the particular demand in flux measure, a single branch reconstruction algorithm aiming at vortex flowmeter signal processing is proposed in this paper.
基于子波变换消噪原理,结合流量测量特定要求,提出了一种适用于涡街流量传感器信号处理的单支重构滤波方法,同时给出了滤波级数的选取方法。
3.
It is presented how to successfully simulate the phenomenon of Karman vortex street when fluid passes by vortex flowmeter by using FLUENT software.
运用FLUENT数值仿真软件成功的模拟出流体流经涡街流量传感器时所产生的卡门涡街现象。
3)  turbine flow sensor
涡轮流量传感器
1.
Quantitative optimization method for rotor geometric parameters of liquid turbine flow sensor;
液体涡轮流量传感器叶轮几何参数定量优化方法
2.
To accurately predict the meter factor of turbine flow sensor by non-experimental calibration and to get its internal flow field information,five kinds of turbulence models,including S-A,standardk-ε,RNGk-ε,Realizablek-ε and standardk-ω model were used respectively in simulation of turbine flow sensor.
为了能够采用非实流标定方法来准确预测涡轮流量传感器的仪表系数以及获得传感器内部流场流动情况,分别应用S-A、标准k-ε、RNGk-ε、Realizablek-ε以及标准k-ω5种湍流模型,对涡轮流量传感器内部流场进行三维数值模拟,并将应用各湍流模型得到的仿真仪表系数与实流标定值进行对比和分析。
4)  vortex flow differential capacitances sensor
涡街电容传感器
5)  Vortex flow transducer
涡街流量变送器
1.
The principle and technology of the intelligent Vortex flow transducer for gas based on HART protocol are introduced.
介绍由信号检测模块、单片机模块、HART通信模块和其他功能电路组成的新型智能气体涡街流量变送器 ,它集信号变换、处理和数字通信等功能于一体。
6)  Eddy current sensor
涡流传感器
1.
Numeral eddy current sensor model building based on artificial neural network;
基于人工神经网络的数字式涡流传感器建模方法
2.
Design and Implementing of Eddy Current Sensor Based on TCA355;
一种采用专用芯片TCA355涡流传感器的研制
3.
Study on numerical eddy current sensor;
数字式涡流传感器的研究
补充资料:涡街流量计的选用
在特定的流动条件下,一部分流体动能转化为流体振动,其振动频率与流速(流量)有确定的比例关系,依据这种原理工作的流量计称为流体振动流量计。目前流体振动流量计有三类:涡街流量计、旋进(旋涡进动)流量计和射流流量计。流体振动流量计具有以下一些特点:
  1)输出为脉冲频率,其频率与被测流体的实际体积流量成正比,它不受流体组分、密度、压力、温度的影响;
  2)测量范围宽,一般范围度可达10:1以上;
  3)精确度为中上水平;
  4)无可动部件,可靠性高;
  5)结构简单牢固,安装方便,维护费较低;
  6)应用范围广泛,可适用液体、气体和蒸气。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条